Which intervention is recommended to prevent ventilator-associated pneumonia?

• A. Head of bed elevated
• B. Oral care
• C. Hand hygiene
• D. Daily chest X-ray

Answer: (A)

Elevating the head of the bed to a semi-recumbent position (about 30-45 degrees) lowers the risk of aspirating oropharyngeal secretions into the lungs, which is a primary way ventilator-associated pneumonia develops. In intubated patients, microaspiration around the endotracheal tube is common, and keeping the head elevated reduces reflux and the chance that secretions reach the lower airways, especially during feeding and suctioning. While good oral hygiene and strict hand hygiene are important parts of infection control, they do not address the main route of VAP as directly as the upright positioning does. Daily chest X-rays, while useful for monitoring, do not prevent VAP and add unnecessary radiation exposure. So, raising the head of the bed is the most effective preventive measure in this context.